Welcome to the Golden Gobbo painting competition. If you'd like to read some of the ancient history you can on the Realm of Chaos 80s blog.
This competition is held some years and you'll find threads here describing how to enter and when the competition is running (typically after BOYL each year).
Other than the fame and wonderment of your peers there is often a prize kindly donated and you'll have the wonder of being awarded badges for your profile here.